Why does she randomly ignore texts?

So I text her back a day later and responds instantly laughing at my jokes showing interest in what I say and in my life! Telling me things like "that's a very mature decision" or "that was really nice of you lol" but then I ask her "how was wwork" and suddenly I don't get a reply. Is this all bad or good?

Keep in mind I'll wait a day sometimes to reply and when I wait she goes on Facebook and likes my stuff lol. She's clearly interested right bro? She kissed me on our date lightly and even texted me 20 minutes later thanking me for the nice evening. We just haven't gone out again as we are both very busy